Most viewed questions in Big Data Hadoop

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How to start working with scala?

Scala can be installed on any UNIX ...READ MORE

Nov 16, 2020 in Big Data Hadoop by Gitika
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414 views
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Pig CLI mode

Pig can be used in two modes: 1) ...READ MORE

Jan 4, 2019 in Big Data Hadoop by Omkar
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414 views
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How to execute job In Oozie?

Can anyone suggest which command to use ...READ MORE

Jun 17, 2019 in Big Data Hadoop by rena
413 views
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Explain to me to download a Hadoop documentation of a particular version.

I'll drop a link here which will ...READ MORE

May 7, 2019 in Big Data Hadoop by ravikiran
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413 views
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Does Cloudera Manager Support an API?

Yes. A comprehensive set of APIs for ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Frankie
• 9,830 points
413 views
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How to specify Hue Server Http address?

Search for the Hue configuration file on ...READ MORE

May 24, 2019 in Big Data Hadoop by Rahul
412 views
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Difference between Name node and Secondary Name node

Explain to me the difference between the ...READ MORE

Mar 26, 2019 in Big Data Hadoop by nitinrawat895
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412 views
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Not able to see racks in reports

Seems like rack awareness is not configure.  Try ...READ MORE

Feb 22, 2019 in Big Data Hadoop by Lucky
412 views
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Produce compressed data from map reduce

 It is straight forward and you can achieve ...READ MORE

Jul 24, 2019 in Big Data Hadoop by John
411 views
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What configuration I need to make to run HBase client?

Hey, If you are configuring an IDE to ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
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411 views
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How to provide encryption for Cloudera HDFS?

You can provide security to cloudera hdfs by using HDFS ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
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411 views
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Oozie editor issue in CDH 5.4: Documents not available.

Hi. CDH 5.4 and later versions use ...READ MORE

May 27, 2019 in Big Data Hadoop by Nisha
409 views
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What is new in Hadoop 3?

Here are few changes in Hadoop 3 1. ...READ MORE

May 28, 2018 in Big Data Hadoop by kurt_cobain
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409 views
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what is big data with examples

what is big data with examples READ MORE

Feb 1, 2022 in Big Data Hadoop by surbhi
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408 views
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Increasing latency for Accumulo batch writer

The default max-latency set is 0 milliseconds. ...READ MORE

May 17, 2019 in Big Data Hadoop by Karan
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Hadoop Small File

Hi@himanshu, To monitor your Namenode, you can create ...READ MORE

Aug 24, 2020 in Big Data Hadoop by MD
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Does Caching stand as the only advantage in Spark compared to Hadoop?

Spark has much lower per job and ...READ MORE

Jul 31, 2019 in Big Data Hadoop by ravikiran
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407 views
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Mappers in Hadoop

The number of mappers is determined by ...READ MORE

Jul 31, 2018 in Big Data Hadoop by kurt_cobain
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406 views
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pattern mapreduce

i need to write some mapreduce pattern ...READ MORE

Jul 23, 2019 in Big Data Hadoop by tiza
405 views
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Running into an issue while running the mapred job on the server

Try this command hadoop dfs -put /var/tmp/students.txt / hadoop ...READ MORE

Dec 20, 2018 in Big Data Hadoop by Omkar
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405 views
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What is Speculative Execution?

If a node is executing a task ...READ MORE

Jun 18, 2018 in Big Data Hadoop by shams
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404 views
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Restrict number of workflows retrieved in an API call

Hey there! Because you are trying to ...READ MORE

May 27, 2019 in Big Data Hadoop by John
403 views
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Who will setup multimode and single node modes?

Cluster management is something that is generally ...READ MORE

Jan 21, 2019 in Big Data Hadoop by Omkar
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401 views
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Namenode start error

Seems like the content in core-site.xml file is ...READ MORE

Dec 26, 2018 in Big Data Hadoop by Omkar
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397 views
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Sqoop import mention accumulo instance to use

You have to mention the accumulo instance ...READ MORE

May 17, 2019 in Big Data Hadoop by Esha
396 views
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File is available at HDFS location. Still system throws en error.

This is happening because the file name ...READ MORE

Jan 2, 2019 in Big Data Hadoop by Omkar
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396 views
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1 answer

Limit for Namenode Quantity

Each file Schema = 150bytes   Block schema ...READ MORE

Jul 25, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
394 views
0 votes
1 answer

Doubt in word count query

The COUNT function returns the number of ...READ MORE

Feb 19, 2019 in Big Data Hadoop by Omkar
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390 views
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1 answer

Hue: Set NT domain

Hi.  How to set NT domain? You have to ...READ MORE

May 29, 2019 in Big Data Hadoop by Kiran
389 views
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Hive: Create Roles

The syntax to create roles is: CREATE ROLE ...READ MORE

May 31, 2019 in Big Data Hadoop by Olly
388 views
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What is Hadoop?

What is Hadoop? READ MORE

Dec 2, 2021 in Big Data Hadoop by Kavya
• 700 points
387 views
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Doubt regarding sqoop updated data

Incremental append or load in sqoop will ...READ MORE

Feb 15, 2019 in Big Data Hadoop by Omkar
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387 views
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Clarification of some Hadoop Concepts.

Please go through : http://bytepadding.com/big-data/map-reduce/understanding-map-reduce-the-missing-guide/ Lets try to understand ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
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386 views
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1 answer

How to Set cluster Rebalancer threshold

The command you are using is wrong. ...READ MORE

Jan 5, 2019 in Big Data Hadoop by Omkar
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384 views
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Determining number of reduces?

Number of reduces are set by the ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
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383 views
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1 answer

Delimiter on the data

You can use this: import org.apache.spark.sql.functions.struct val df = ...READ MORE

Jul 25, 2019 in Big Data Hadoop by Vinay
382 views
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Explain to me the HUE.

I am kind of new to Big-Data ...READ MORE

May 16, 2019 in Big Data Hadoop by nitinrawat895
• 11,380 points
382 views
0 votes
1 answer

how is apache sqoop different from flume? Can someone explain?

Apache Sqoop lets you import and export ...READ MORE

Nov 15, 2018 in Big Data Hadoop by brat_1
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381 views
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Implementation in Hadoop

Hi@pinal, You have already installed hadoop. Now you ...READ MORE

Apr 3, 2020 in Big Data Hadoop by MD
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377 views
–1 vote
1 answer

Need help in Installation of Hadoop

To set up Hadoop VM in centOS ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Omkar
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377 views
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What is Big Data Analytics?

Dec 10, 2021 in Big Data Hadoop by surbhi
• 3,810 points
375 views
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Sqoop: Use accumulo with user credentials

Refer to the below syntax and use ...READ MORE

May 17, 2019 in Big Data Hadoop by Carly
368 views
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Query regarding ArrayBuffer

It's because that is the syntax. This ...READ MORE

Jul 26, 2019 in Big Data Hadoop by Rishi
366 views
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Run Oozie against a federated Cluster

You can run Oozie against the federated ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Nanda
366 views
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What things to keep in mind before upgrading Hbase ?

Hey, Before beginning the upgrade process, you must ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
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366 views
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0 answers

hey,can you help me

I am install hadoop and runing program ...READ MORE

Apr 11, 2019 in Big Data Hadoop by faris
364 views
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1 answer

Execute the Pig script in Local mode.

Hi@akhtar, You can write an entire Pig Latin ...READ MORE

Oct 14, 2020 in Big Data Hadoop by MD
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362 views
0 votes
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what are the problems associated with big data

what are the problems associated with big ...READ MORE

Jan 7, 2022 in Big Data Hadoop by surbhi
• 3,810 points
358 views
0 votes
1 answer

what is big data technology

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
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356 views